The post-season F1 testing ban ends today, and most of the Formula One teams will immediately begin testing in Spain.

On-track testing has been prohibited since the season-ending Japanese Grand Prix on October 12.

The first tests will involve the Bridgestone teams at Barcelona's Circuit de Catalunya while the Michelin teams will be in Valencia.

The only exception being BAR-Honda, who having made the switch from Bridgestone to Michelin tyres, will test at Barcelona.

West McLaren-Mercedes will become the first team to run its 2004 car when it tests the MP4-19 in Valencia.

Reigning world champion Michael Schumacher will not test until January so that he can rest and recharge his batteries for the upcoming season. The Ferrari star is also recuperating from a minor knee injury he suffered while playing soccer.